Common Nut Truffle vs Thwaites's Nut Truffle

Hymenogaster vulgaris compared with Hymenogaster thwaitesii

Key Differences

• Common Nut Truffle is Data Deficient while Thwaites's Nut Truffle is Not Evaluated.

Taxonomic Classification

Rank	Common Nut Truffle	Thwaites's Nut Truffle
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Agaricales (Gilled Mushrooms)	Agaricales (Gilled Mushrooms)
Family same	Hymenogastraceae	Hymenogastraceae
Genus same	Hymenogaster	Hymenogaster
Species	Hymenogaster vulgaris	Hymenogaster thwaitesii

Evolutionary Relationship

Common Nut Truffle and Thwaites's Nut Truffle share a common ancestor at the Genus level: Hymenogaster.

Conservation Status

Common Nut Truffle

DD — Data Deficient

Thwaites's Nut Truffle

NE — Not Evaluated

Physical Characteristics

Attribute	Common Nut Truffle	Thwaites's Nut Truffle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Nut Truffle

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

Thwaites's Nut Truffle

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Found in Norway.

Common Nut Truffle

<em>Hymenogaster vulgaris</em>, the common nut truffle, is a hypogeous (below-ground) fungus in the family Hymenogastraceae, order Agaricales. This sequestrate species produces enclosed, truffle-like fruiting bodies that mature underground and rely primarily on small mammals and invertebrates for spore dispersal, as the sporocarps never open to release spores aerially. <em>Hymenogaster vulgaris</em> typically forms ectomycorrhizal associations with hardwood tree species, particularly oaks and beeches, in temperate European forests. Its geographic range includes Denmark, Norway, Portugal, Sweden, and the United States, reflecting a somewhat scattered distribution across temperate zones. The species is currently assessed as Data Deficient by the IUCN, indicating that insufficient information exists to evaluate its conservation status, likely because hypogeous fungi are difficult to survey and their population trends are poorly known. Biological traits such as lifespan, body size, and diet remain poorly documented for this species. As an ectomycorrhizal fungus, <em>Hymenogaster vulgaris</em> plays a critical role in facilitating nutrient uptake in host trees and supporting forest health across its temperate range.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway